To clarify, like kawininjazx said, the one on NewEgg was/is the previous model (no "HD" in name or specs).
It's not being sold yet: looks like August 9 in the US
GameStop is only place I see with pre-orders so far (and they only list the White, Blue and Pink...)http://www.gamestop.com/browse?nav=16k-3-ASUS+MeMO+PAD+HD+7,28zu0
What's a "Hall sensor"? 'Fall Sensor'?https://www.asus.com/Tablets_Mobile/ASUS_MeMO_Pad_HD_7/#specifications
I'm definitely curious.
Engadget has a little more on it.